| 6 February 1868 | | Born in Koog aan de Zaan:
Jan Adam Zandleven son of Thomas
Zandleven, manufacturer and merchant in paints and Anna Maria van
Soll |
| ? | | Moves to Groningen, probably to look after his fathers business |
| 20 February 1884 | | Return to Koog aan de Zaan |
| 1 June 1895 | | Family Zandleven moves to Leeuwarden, Spanjaardslaan 12 |
| 1895 (?) | | Jan Adam marries Janke Piebenga
(source: Just Havelaar, preface catalogue Amsterdam 1929) |
| December 1895 | | Jan Adam returns, together with his wife Janke to the Zaanstreek,
Spoorstraat (later Stationsstraat) in Koog aan de Zaan |
| 1897 | | Removal to Beverwijk |
| 22 November 1902 | | Removal to Wijk aan Zee |
| 1904 | | Removal to Gorssel, Gelderland |
| 1906 | | First exhibition, Rotterdamse Kunstkring |
| Summer 1907 | | Removal to 'het Burgemeestershuis' in Hengelo (Gld) |
| Autumn 1912 | | Removal to Putten |
| April 1918 | | Removal to Rhenen (Hoofdstraat) |
| 16 July 1923 | | Deceased in Rhenen |